diff --git a/Demo/embed/demo.c b/Demo/embed/demo.c
index 22bfaff..dc8bcf0 100644
--- a/Demo/embed/demo.c
+++ b/Demo/embed/demo.c
@@ -20,10 +20,19 @@
     Py_Initialize();
 
     /* Define sys.argv.  It is up to the application if you
-       want this; you can also let it undefined (since the Python
+       want this; you can also leave it undefined (since the Python
        code is generally not a main program it has no business
-       touching sys.argv...) */
-    PySys_SetArgv(2, args);
+       touching sys.argv...) 
+
+       If the third argument is true, sys.path is modified to include
+       either the directory containing the script named by argv[0], or
+       the current working directory.  This can be risky; if you run
+       an application embedding Python in a directory controlled by
+       someone else, attackers could put a Trojan-horse module in the
+       directory (say, a file named os.py) that your application would
+       then import and run.
+    */
+    PySys_SetArgvEx(argc, argv, 0);
 
     /* Do some application specific code */
     printf("Hello, brave new world\n\n");
diff --git a/Doc/c-api/intro.rst b/Doc/c-api/intro.rst
index 4b67912..249610b 100644
--- a/Doc/c-api/intro.rst
+++ b/Doc/c-api/intro.rst
@@ -519,12 +519,12 @@
 :mod:`builtins`, :mod:`__main__`, :mod:`sys`, and :mod:`exceptions`.  It also
 initializes the module search path (``sys.path``).
 
-.. index:: single: PySys_SetArgv()
+.. index:: single: PySys_SetArgvEx()
 
 :cfunc:`Py_Initialize` does not set the "script argument list"  (``sys.argv``).
-If this variable is needed by Python code that  will be executed later, it must
-be set explicitly with a call to  ``PySys_SetArgv(argc, argv)`` subsequent to
-the call to :cfunc:`Py_Initialize`.
+If this variable is needed by Python code that will be executed later, it must
+be set explicitly with a call to  ``PySys_SetArgvEx(argc, argv, updatepath)``
+after the call to :cfunc:`Py_Initialize`.
 
 On most systems (in particular, on Unix and Windows, although the details are
 slightly different), :cfunc:`Py_Initialize` calculates the module search path